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author | Sven Hesse | 2008-05-08 15:51:02 +0000 |
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committer | Sven Hesse | 2008-05-08 15:51:02 +0000 |
commit | 18db41db506b1e18e050e8dded44dc8501b9bc8f (patch) | |
tree | 70915fc5e973052e2ea6b2d1034e1b42f11b9c7b /engines/gob/sound/bgatmosphere.cpp | |
parent | a9b4058ba9fd94de7bd293b0763d71f9f90f84bc (diff) | |
download | scummvm-rg350-18db41db506b1e18e050e8dded44dc8501b9bc8f.tar.gz scummvm-rg350-18db41db506b1e18e050e8dded44dc8501b9bc8f.tar.bz2 scummvm-rg350-18db41db506b1e18e050e8dded44dc8501b9bc8f.zip |
Implemented the background "music" / atmospheric sounds in Woodruff
svn-id: r31949
Diffstat (limited to 'engines/gob/sound/bgatmosphere.cpp')
-rw-r--r-- | engines/gob/sound/bgatmosphere.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/engines/gob/sound/bgatmosphere.cpp b/engines/gob/sound/bgatmosphere.cpp new file mode 100644 index 0000000000..3c61f4f76a --- /dev/null +++ b/engines/gob/sound/bgatmosphere.cpp @@ -0,0 +1,126 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#include "common/system.h" +#include "common/events.h" + +#include "gob/sound/bgatmosphere.h" + +namespace Gob { + +BackgroundAtmosphere::BackgroundAtmosphere(Audio::Mixer &mixer) : SoundMixer(mixer) { + _playMode = kPlayModeLinear; + _queuePos = -1; + _shaded = false; + + g_system->getEventManager()->registerRandomSource(_rnd, "gobBA"); +} + +BackgroundAtmosphere::~BackgroundAtmosphere() { + queueClear(); +} + +void BackgroundAtmosphere::play() { + Common::StackLock slock(_mutex); + + _queuePos = -1; + getNextQueuePos(); + + if (_queuePos == -1) + return; + + SoundMixer::play(*_queue[_queuePos], 1, 0); +} + +void BackgroundAtmosphere::stop() { + SoundMixer::stop(0); +} + +void BackgroundAtmosphere::setPlayMode(PlayMode mode) { + _playMode = mode; +} + +void BackgroundAtmosphere::queueSample(SoundDesc &sndDesc) { + Common::StackLock slock(_mutex); + + _queue.push_back(&sndDesc); +} + +void BackgroundAtmosphere::queueClear() { + Common::StackLock slock(_mutex); + + SoundMixer::stop(0); + for (uint i = 0; i < _queue.size(); i++) + delete _queue[i]; + + _queue.clear(); + _queuePos = -1; +} + +void BackgroundAtmosphere::checkEndSample() { + Common::StackLock slock(_mutex); + + getNextQueuePos(); + + if (_queuePos == -1) { + _end = true; + _playingSound = 0; + } else { + SoundMixer::setSample(*_queue[_queuePos], 1, 0, 0); + if (_shaded) + _fadeVol = 20000; + } +} + +void BackgroundAtmosphere::getNextQueuePos() { + if (_queue.size() == 0) { + _queuePos = -1; + return; + } + + switch (_playMode) { + + case kPlayModeLinear: + _queuePos = (_queuePos + 1) % _queue.size(); + break; + + case kPlayModeRandom: + _queuePos = _rnd.getRandomNumber(_queue.size() - 1); + break; + + } +} + +void BackgroundAtmosphere::shade() { + _shaded = true; + _fadeVol = 32768; +} + +void BackgroundAtmosphere::unshade() { + _shaded = false; + _fadeVol = 65536; +} + +} // End of namespace Gob |